The Secret Life of the Zoo Episode Rating Graph

When dik dik Kahri becomes a dad, his fight or flight instinct goes into overdrive. Meanwhile, the keepers face the dangerous task of replacing a broken window in the reticulated python habitat.

Tapir Jenny, who has two young offspring, falls ill. Can rhino Kifaru, who has arthritic knees, mate with younger, taller and heavier female rhino Malindi? Widowed porcupine Roxy meets a new mate.

Grumpy elephant Thi is expecting a baby. The chimps battle for dominance. Red panda Nima gives her partner Jung the cold shoulder. And the meerkats prove they're not as loveable as they first seem.

Female rhino Kitani is introduced to her new mate, Magadi. But rhino mating is a risky business. There's a surprise birth in the orangutan house. Plus: fruit bats, macaques and young jaguars.

As the festive season approaches at Chester, the zoo's youngsters - from giraffes to monkeys - are about to have their first Christmas, and there are other newbies, too.

Young elephant Nandita isn't happy when her half-sister is born. Bush dog Franco has got his sister-in-law pregnant. Rhino beetle Sheldon has a damaged wing case; can he impress female beetle Alice?

Oana the anoa and capybara Lochley both give birth. Tiger mum Kirana's sons are being moved to other zoos to start their own families. Young monkey Rocky won't pay attention to his mum's life lessons.

Sloth Tina has been giving her partner Rico a hard time, but the keepers have a plan to bring them closer together. And three-legged chameleon Tripod goes speed-dating.

Mr Parsons the chameleon meets a new mate, Daphne from Paris. Young giraffe Murchison faces the great outdoors for the first time. And another baby elephant is born.

Spotty chocolate poison dart frog Roy faces competition from hunky newcomer Hunter. And keepers hope there may be a first joey on the way for dusky padamelon Styx.

Inseparable penguins Rud and Spike have been a couple for 15 years. But Rud's arthritic hip could be affecting his quality of life. The tigers move house, and a tarantula risks his life to reproduce.

Four rare and mysterious tenrecs arrive at the zoo. Endangered eastern black rhino Kitani is due to give birth. And jewel wasp Ripley searches for a cockroach to turn into a zombie egg incubator.

Keepers are keen to breed some baby eastern bongos, a critically-endangered species of antelope. Pinstripe damba fish George needs an immediate operation to prevent suffocation.

Young giraffe mum Tula gives birth, while this year's brood of penguin chicks face the ordeal of joining the main pool, where they must compete for fish with the adult penguins

Tortoises Burt and Terrance, who've been best mates for 70 years, compete for the affections of breeding female Smooth Sides. Pregnant okapi K'Tusha is due to give birth. Plus: vultures and elephants.

Chester Zoo's alpha male lion is having a crisis of confidence. There's been a bloodbath among the vampire crabs. And affable Andean bear Bernie has been kicked out of the family paddock.

A pig goes on the run. Giraffe Narus is being moved to another zoo, but getting him into a horsebox isn't easy. And can the keepers encourage mono-browed fish Noel Gallagher and Frida Kahlo to mate?

Chameleons Charles and Eddie try to impress new arrival Ruby. Orangutan sisters Emma and Subis are expecting babies by male Puluh at the same time. The aardvarks are making the new meerkats anxious.

Two of Chester Zoo's zebras are about to give birth. Meanwhile, lioness Kumari seems to be losing interest in her partner, Iblis. And two of warthog Magnum's children are becoming hard to control.

It's Christmas at Chester Zoo. The UK's first ever surviving sun bear cub is born, and there's a yuletide ceasefire in the turf war between the otters and the babirusas.

Kendari the babirusa is pregnant, but otters Wallace and Annie keep throwing stones at her house. Next door, orangutan Willie is struggling to impress females Sarikei and Leia.

Bush dog Mana is pregnant. There's a power struggle on chimp island. Otter Wallace is struck down by a mystery illness. And is romance in the air for wattled cranes Wilma and Ivan?

Can adolescent orangutan Tuti prove that she's responsible enough to hold baby Kesuma? Dangerous turtle Shrek gets a new mate. Tiny babirusa piglet Tomini is struggling to survive. Plus: cheetahs.

Keepers spot that Asian short-clawed otter pups are developing bald patches, threatening their waterproofing. Plus, Caribbean flamingos, Asian elephants and dik-dik antelopes.

The keepers think that pregnant elephant Thi is three months overdue. Rampant giraffe Meru relentlessly chases the females in his herd. Plus: anteaters and clownfish.

Boris the chimp takes a moorhen chick hostage. French crocodile François turns his snout up at British food. The keepers try to spark romance between turtles Raja and Aris. Plus: young penguins.